Impounded Property

I took a cake to work on Friday for my and a couple of coworkers birthdays. It was another delicious carrot cake. However, Friday was a horrible, bad, day at work. It was so overwhelming for everyone that there was no fun in the cake, and I finally got a piece of it at 6:30. I was leaving work after this bad day, cake carrier in hand, when I arrived at the car realizing I had left my keys inside. It was already 8:40 because I had been so far behind. Not wanting to lug the cake through the hospital . . . again . . . I left it on top of the car.
Being so late, no one was up that high in the parking garage. Besides, a cake carrier that was $1.50 at D.I. is not the same as your purse. I came back 8 minutes later and the cake was gone. I then noticed a "Parking Violation Warning" slip on the windshield, with the "Other" box checked, then describing the cake carrier "found on car." It also came with a flier about avoiding auto theft. Apparently leaving the cake on the car was akin to leaving the ignition running.
It then took 45 minutes to get the stupid cake back from security. The guard who had impounded the cake didn't report in or answer his radio for that entire time. Finally another guard said, "Well, I know a spot he likes to hang out," and found him in about 3 seconds. Seeing it was past 9, and I had a test at 9 the next morning, I thought the whole thing was entirely ridiculous.
To top it all off, the guard, Gary, chewed me out when he finally returned the cake to me. What about him not being available for security purposes for the better part of an hour? I'm know the cake is not a real emergency, but the method of contact is the same.